rotational speed 中文意思是什麼

rotational speed 解釋
旋轉速度（旋轉頻率）
  • rotational : adj. 1. 旋轉的；輪流的，循環的。2. 【農業】輪作的。
  • speed : n 1 快，迅速。2 速率，速度。3 （汽車的）變速器，排擋。4 （膠片，照相紙）感光速度。5 〈古語〉興隆...
  1. By analysing the relationship among the parameters such as substrate, speed, tension, rotational speed, shape distortion of paper etc, this article put forward a control law to control the drive transmission roller in emery cloth and sand paper production line, the principle is based on hooke ' s law

    摘要本文根據彈性力學中的虎克定律，結合砂布砂紙生產特點，分析計算了生產線中基體、應變、速度、張力、轉速等參數之間的關系，建立了砂布砂紙生產線中傳動輥轉速（頻率）運動方程。
  2. In order to keep the desired line speed and carry out the normal logging without troubles, the rotational speed should be rectified manually which is a heavy work, and also the output consistency is not satisfactory

    測井中絞車滾筒半徑不斷變化，電纜的線速度也不斷變化，為保證線速度恆定和順利測井，需要不斷進行人工調整，工作強度大，速度輸出一致性差。
  3. A synchronous motor drives the measuring bob at a constant rotational speed.

    同步馬達驅動測錘以恆速旋轉。
  4. This machine has high rotational speed, it is based on the common centrifugal separator, its novel design great enhances the speed of lowing the supplies. main applies : this machine is called throw liquid centrifugal separator, is suitable for clarifying drizzle drops of liquid that has floated, now it has been widely applied in the industries of medicine, chemistry and food industry, it can be used to separate materials before the process of the centrifugal separator of pipe type

    該機適用於對固相為顆粒狀的懸浮物的過濾，也可用於纖維及其紡織印染洗滌後有脫水，物料從頂部加入，由專用雙速電機通過三角膠帶，實現低速啟動，高速分離，使轉鼓形成離心力場，液相通過固相和濾網由下部出液口排出，固相停機後由上部取出。
  5. The effect of compound casting technology and compound modification on the properties of high speed steel roll collar was studied. the results showed that compound high speed steel roll collar with high and even hardness and good bond between outer and inner layers could be gained when the modified colbalt free high speed steel in outer layer and nodular iron inner layer in connection with appropriate rotational speed of centrifugal machine, pertinent pouring interval between two kinds of the melt and moderate pouring temperature as well as surface induction heat treatment were chosen. it is indicated in industrial use that the service life of compound roll collar is higher by 5 times than that of high chromium cast iron collar

    研究了離心復合鑄造工藝和復合變質處理對高速鋼輥環性能的影響，結果表明，選用變質高碳無鈷高速鋼作外層，用球鐵作內層，選擇合適的離心機轉速、兩種金屬熔液澆注間隔時間和澆注溫度，結合採用表面感應熱處理工藝，可獲得硬度高、均勻性好、內外層結合良好的高速鋼復合輥環，用於工業生產其使用壽命比高鉻鑄鐵輥環提高5倍以上。
  6. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  7. Under the control of a current loop, the system can make advantage of the motor ' s ability of over - current with a maximum limit, as a result, the motor can implement constant - current staring under a maximum let - through current. therefore, the motor ' s rotational speed can rise at a maximum acceleration and reach the given speed within the shortest time

    在電流環的控制下，系統在起動的時候能夠最大限度的發揮電機的過流能力，使電機以最大允許的起動電流恆流起動，則電機轉速可以以最大的加速度上升，並且以最快的時間達到給定轉速。
  8. So they can not be used in on - line fault detection and condition monitoring. and the explanation of the time - frequency analysis is not easily accepted by the engineers. the experimental factors, such as rotational speed and measured position and fault distribution a

    文中還針對轉速、測點位置、故障分佈（位置） 、負載等因素對頻譜分析、包絡分析、時延相關解調等方法的診斷效果進行了大量的實驗研究。
  9. By adopting the iodide - iodate reaction system as an index, the distribution of segregation index ( x ) along the radial direction of packing and the effects of different operational conditions ( e. g. rotational speed, flow rates ) on micromixing efficiency of a novel rotating packed bed ( rpb ) have been investigated

    通過設計一臺能實現沿程取樣的旋轉填充床，同時通過採用一種平行競爭微觀混合體系碘化物碘酸鹽反應體系，考察了填料的不同徑向位置離集指數的分佈及各操作參數對旋轉填充床微觀混合效率的影響。
  10. High luxury aviation instrument, sets mileage, rotational speed, yau spaces, the integration stalls, clear

    高級豪華航空儀表，集里程轉速油位檔位一體，一目了然。
  11. For some bearings used in the low - rotational - speed michanical equipments, the expensive prices have always been perplexing each trader of purchase bearing. carbon steel bearing products produced by hengli bearing factory can exactly satisfy the demand of the masses of customer

    對於一些在低轉速機械設備中使用的軸承，昂貴的價格一直困擾著每位購買軸承的客商，恆力軸承廠生產的碳鋼軸承正是滿足了廣大客戶的這種需求。
  12. The mathematical model of diesel - generator set in the mechano - electronic transient process is proposed in this paper, the pulsation and delay of diesel torque are analyzed, the relation between diesel torque and diesel rotational speed together with injection pump rack bar displacement is described exactly. the motion law of diesel - generator set is revealed all - sidedly and nonlinear problem of diesel - generator set is settled by piecewise linearzation method

    本文提出了柴油發電機組機電暫態過程的數學模型，分析了柴油機轉矩的脈動和滯后，準確地描述了柴油機輸出軸扭矩與柴油機轉速和噴油泵齒桿位移之間的關系，全面揭示了柴油發電機組的運動規律，利用分段線性化的方法解決了柴油發電機組的非線性問題。
  13. The main contents of this paper are following. ( 1 ) the mechanical models of ball bearings are set up by both the quasi - dynamic method and the finite element method in this paper, and then the load distribution of ball bearings is studied. the rules of the contact angle, the deformation, the stiffness and the limit rotational speed in different structure parameters and load parameters are analyzed

    本文圍繞航空發動機高速滾動軸承的力學特性，開展了以下工作: （ 1 ）分別採用擬動力學法和有限元法，建立了滾動軸承力學分析模型，研究了滾動軸承的載荷分佈特性，分析了不同結構參數和載荷參數對其接觸角、變形、接觸剛度和極限轉速的影響規律。
  14. This bearing limit rotational speed is low, ( therefore mainly applies on the mill calls rolling mill bearing )

    該軸承極限轉速較低，主要應用於軋鋼機上（故稱軋機軸承） 。
  15. Most importantly, they observed that the rotational speed of this star slows down at a rate of 2. 6 x10

    更重要的是，據觀測所得，這顆中子星的自轉速度每年以2 . 6x10
  16. From single - phase power supply, the shocks have driven two of the permanent cigang rotor rotary rotary magnetic field, and reducer with calculated design to export different rotational speed and moment, with the corresponding reduction in rotational speed increase moment

    由單相電源供電，振蕩產生兩相旋轉磁場驅動永久磁鋼轉子旋轉，與減速器配合，根據計算設計可以輸出不同的轉速和力矩，隨著轉速減少的相應的力矩增加。
  17. In this dissertation, i demonstrate a new designation scheme of its electric - controlling system based on the domestic products of this kind. i used dc servomotor and the pwm motor - timing scheme to control the rotational speed of the motor in order to improve the performance of the microinjection instrument and control the injection amount precisely

    本文在國內現有產品的基礎上，針對上述缺點，提出一種新的電控系統設計方案，即選用直流伺服電機並採用pwm電機調速方案進行電機轉速控制，以提高醫用輸液採的工作性能，實現注射量的精確和穩定控制。
  18. It can automatically match rotational speed generator, electromagnetic rotational speed sensor and electromagnetic turbine flowmeter. moreover it can adapted measured signal that is 1v ~ 300v voltage and 1hz ~ 2500hz frequency

    能自動匹配測速發電機、電磁式測速傳感器和電磁渦輪流量計，適應電壓峰峰值從1伏以下至300多伏、頻率從1hz以下至2500hz以上的被測信號。
  19. It gains the combustable gas samples of different qualities through changing the rotational speed of the air blower, and quantitatively researchs the rule of the rotational speed influencing on the quality of the combustable gas by the use of the results of tcd ( thermol conduction detection ) on those combustable gas samples, so that it draws a conclusion that the quality of the combustable gas is better when the rotational speed of the air blower is between 350rpm and 450rpm

    通過改變鼓風機轉速即氣化劑流量，獲得不同品質的可燃氣樣品，並利用這些可燃氣樣品的熱導檢測結果，定量研究了風機轉速即氣化劑流量對可燃氣品質的影響規律，得出了在風機轉速為350 - 450rpm時，可燃氣品質較好。
  20. Therefore soon after their supernova birth, their rotational speed will become so low that they stop to emit electromagnetic pulses

    因此，超新星爆發后不久，磁星的自轉速度會變得非常緩慢，因而停止發放電磁脈沖。
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